Re: Configuring the same IP on multiple addresses

2007-10-30 Thread Vlad Yasevich
David Miller wrote: > From: David Miller <[EMAIL PROTECTED]> > Date: Mon, 29 Oct 2007 15:25:59 -0700 (PDT) > >> Can you guys please just state upfront what virtualization >> issue is made more difficult by features you want to remove? > > Sorry, I mentioned "virtualization" because that's been th

Re: Configuring the same IP on multiple addresses

2007-10-29 Thread Brian Haley
David Miller wrote: From: David Miller <[EMAIL PROTECTED]> Date: Mon, 29 Oct 2007 15:25:59 -0700 (PDT) Can you guys please just state upfront what virtualization issue is made more difficult by features you want to remove? Sorry, I mentioned "virtualization" because that's been the largest ma

Re: Configuring the same IP on multiple addresses

2007-10-29 Thread David Miller
From: David Miller <[EMAIL PROTECTED]> Date: Mon, 29 Oct 2007 15:25:59 -0700 (PDT) > Can you guys please just state upfront what virtualization > issue is made more difficult by features you want to remove? Sorry, I mentioned "virtualization" because that's been the largest majority of the cases

Re: Configuring the same IP on multiple addresses

2007-10-29 Thread David Miller
From: Vlad Yasevich <[EMAIL PROTECTED]> Date: Mon, 29 Oct 2007 14:03:37 -0400 > So, I am looking for technical reasons why this is permitted. I am looking for a technical reason why you find a need to discover this feature and want the remove it :-) Can you guys please just state upfront what vi

Re: Configuring the same IP on multiple addresses

2007-10-29 Thread David Stevens
> For v6, there are plenty of operational reasons to not allow this. You really > turn unicast into anycast when you do this and there are special rules to > be followed. I don't see it that way. The only "problem" I can think of offhand is that you can't use a multi-interface address t

Re: Configuring the same IP on multiple addresses

2007-10-29 Thread Vlad Yasevich
David Stevens wrote: > [EMAIL PROTECTED] wrote on 10/29/2007 11:03:37 AM: > >> So, I am looking for technical reasons why this is permitted. > > Vlad, > Is there a technical reason to disallow it? Rather than > anticipate all the possible uses for a machine, it's, of course, > generally b

Re: Configuring the same IP on multiple addresses

2007-10-29 Thread David Stevens
[EMAIL PROTECTED] wrote on 10/29/2007 11:03:37 AM: > So, I am looking for technical reasons why this is permitted. Vlad, Is there a technical reason to disallow it? Rather than anticipate all the possible uses for a machine, it's, of course, generally better to restrict only the things yo

Configuring the same IP on multiple addresses

2007-10-29 Thread Vlad Yasevich
Hi All Does anyone have a reason why Linux allows one to configure the same IP or IPv6 address on multiple interfaces? For IPv4, since linux implements a weak host model, assigning duplicate addresses doesn't make any sense, since the addresses really belong to the host and not the interface. Fo